Question

Equal length of magnesium ribbon are taken into test tubes a and b. H2 s o4 is added to test tube a and H2 c o 3 in the test tube b in equal amounts:

A. Identify the test tube shaving vigorous reaction

B. Give reason to support your answer

C. Name the gas liberated in both the test tubes how will you prove its liberation

D. Write the chemical equations for both reactions

E. Out of this two acids taken, which one

a. will have lower PH value
b. lower h + concentration respectively?

Answer 1

Answer:

1. in tes tube A.
2. because H2SO4 is the strongest acid at all.
3. hydrogen gas is liberated . we can test this by taking matchstick in contact to this gas.
4. H2SO4 + mgo = mgso4 + h2o , h2co3 + mgo = mgco3 + h2o
5. H2SO4 rxn has less pH value, and h2co3 has lower concentration of h+ ions.